Modification ideas for boondocking

Bluebeard wrote:
I've got some ideas and I thought I'd run it by you guys (gals):

Thank you for including us gals.

Bluebeard wrote:
3. Has anyone ever considered setting up a mini drainback solar hydronic system on the roof to preheat the water for the hot water heater? I would be pretty simple to set up with some black tubing on the roof, and it would run on sunny days. When you came back from hiking, maybe the water in the hot tank would be 120F, so you wouldn't need to fire up the furnace.

I'm not sure if you're trying to get hot water or hot air (or both), but I'm a fan of free hot water and have my eye on this in case we ever quit using our satellite internet dish and free up some unshaded roof space: RV Solar Hot Water Kit